Run openshift_version before configuring repositories

[leoluk]

This fixes #10445.

Correct file is templated:

TASK [openshift_repos : Configure correct origin release repository] ***************************************************************************************************************************************************************************************************************************************************************************************************************************
Thursday 08 November 2018  15:43:08 +0100 (0:00:00.865)       0:00:36.746 ***** 
changed: [oc-dev.marbis.net] => (item=/opt/openshift/roles/openshift_repos/templates/CentOS-OpenShift-Origin310.repo.j2)

TASK [openshift_repos : debug] *****************************************************************************************************************************************************************************************************************************************************************************************************************************************************************
Thursday 08 November 2018  15:43:09 +0100 (0:00:01.172)       0:00:37.918 ***** 
ok: [oc-dev.marbis.net] => {
    "msg": "CentOS-OpenShift-Origin310.repo.j2"
}

$ rm /etc/yum.repos.d/*Origin*
$ ansible-playbook playbooks/prerequisites.yml
[...]
$ ls /etc/yum.repos.d/*Origin*
/etc/yum.repos.d/CentOS-OpenShift-Origin310.repo

We might want to remove the wrongly deployed CentOS-OpenShift-Origin.repo for existing 3.10 installs, otherwise, they will pull 3.11 packages as soon as those are added to the SIG repo.

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[vrutkovs]

/ok-to-test

[papr-bot]

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[michaelgugino]

/hold

I need to look into what this might impact. I'm pretty sure we need information from cluster_facts for openshift_version.

[michaelgugino]

Yes, unfortunately this change won't do. We have a chicken and egg problem with 'openshift_current_version' which relies on packages being installed to detect it.

In 3.9 and newer, we only support the current openshift-ansible branch, so we might as well hard-code these centos repo template names to whatever the branch is.

EG, on 3.11, just hard-code to use CentOS-311.repo (or whatever it's named).